I believe they were not, plus I trust God to make sure I do not lie to Him, like they did. I would say they were committed to that betrayal and not considering Peter to be legitimate. And that had a lot to do with how they could die for doing that. Betraying trust is a work of hate, not of a child of God's love.
And my opinion is if God changes a person to become a child of God, now the person is not able to so fully betray the Holy Spirit and God's people. And yet . . . I now think of this > Peter betrayed the Holy Spirit and the Gentile-background Christians > Galatians 2:11-13 < in my opinion; yet, God had mercy on him . . . and corrected him.
But there is a moral lesson for me > that if they were lying to God by lying to God's servant, this goes for my relating with any child of God. If I knowingly lie to any child of God, I am lying to Jesus. What I do to the least of Christ's I am doing to Him, and lying to the Holy Spirit. So, I am very prayerfully careful what I say to people who are my Christian leaders and my brothers and sisters.
Of course, I am not required to tell people every thing about me, but do not lie to them. Be prayerful about if and how God wants me to trust each person.
So, I think it helps to not only judge them, but see how it applies to me.